Banding machine



Feb. 22 1927.

J. O. HUNT BANDING MACHINE Filed April 5 Sheets-Sheet 1 Bf/ HUNT INVENTOR ATTORNEY 1927' J. o. HUNT BANDING MACHINE Filed April 20, 1926 5 Sheets-Sheet 2 [JOHN D HUNT INVENTOR ATTORNEY Feb. .22, 1927. 1,618,712

J. O. HUNT BANDING MACHINE Filed April 20, 1926 5 Sheets-Sheet 3 N c E ATTORNEY Feb. 22, 1927. J. O. HUNT BANDING MACHINE Filed April 20, 1926 'SSheets-Sheet 4.

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J. O. HUNT BANDING MACHINE Filed April 20, 1926 5 Sheets-Sheet 5 JOHN 0. HUNT INVENTOR BY i mzW TTORNEY mated Feht1927 um'ran ,STA'T" vPA-TENT- orifice. Y

JOHN o. BUM, or naooknrn, Haw Yoax, aasmnon 'ro mnarannnn'r rum; mus,

- me, or nnooxmm, saw your. 1

BANDING 'ILCHINE.

Applicationflled April :0, 1m. 8er1 al-1I'o.108,193.

This invention relates banding' niech- 7 showing its swinging supports, rack actuated parts, and geared adhesive applying device anisms and particularly to machines forapplying a tape-like strip of paper, as a band, about packages of like size.

In the commercial manufacture of high grade paper napkinsor serviettes a bi-bulous paper is received in the form of alar e 'roll from the mill, slit into sheets of esired width, folded and cut transversely into squares of suitable size and thereafter folded, doubled and jredoubled into a smaller squares, familiar to all and sold in this condition to restaurants and supply houses in packages containin a definite number.

The purpose of t e present invention is. to

provide an eflicient mechanism to receivef the loosely folded napkins in bunches of a redetermined number, pass a narrow strip 0 paper around the napkins, sever the strip from the roll on which it is wound, a ply an adhesive to one of the enga ing end; of I the strip, press the ends toget er to cause cohesion and deliver the packages thus formed outwardly from the machine in condition to be boxed for shipment.

It is an object to perform these several functions consecutivel without waste of band material, to apply the adhesive without making contact with the napkins, which should pass through the machine without human touch or becoming soiled, and which are thus bound at a high rate of speed.

Such. results are full attained by the mechanism hereinafter escribed and illustrated in the associated drawings, forming an essential part of this disclosure, and in which Fig. 1 is a side elevational view of an embodiment of the invention, the packing plunger being in a raised rearward position.

Fig. 2 is a similar view of the same but showing the plunger in its lowermost position and the beam head extending thereover.

Fig. 3 is a front elevational view of the packaging mechanism resting on the parts illustrated in Fig. 1 and-showing the nap- Cir kin gathering, adjusting and compressing means in receptive position,

-Fi 4 1s another like vlew of the same kins as illustrated in Fig. 2.

Fig. 5 is a perspective view of the stacked napkins partially wrapped in a binder.

Fig. 6 is an enlarged detail view in side elevation of the beam head.

,online 11-11 of Fig. 8,

showlng the parts as engaged with the nap- 7 -is a top plan view of the beam carried thereon.

Flg. 8 is a side elevational view of the same, showing the racks and elements 0 raper tape roll support as carried by the ealrin, and pinion engaged with the beam rac Fig. 11 is a similar sectional view taken through the adhesive supply tank and dispensing roll therein.

Fig. 12 is a like sectional view taken on line 12-12 of Fig. 8, through the rack driven adhesive applicator and cutter blade carrying wheel.

The mechanism for packaging the napkins is to be understood as ad unctive to other devices for cutting, folding, counting and bunching them in rior operations an consists of an upright rame, generally designated .by the numeral 20, having a plain upper wall 21 and a flat surfaced wide column 22 at the front end.

' At the top of the column 22 is a block 23, in which is mounted a pair of spaced transverse spindles 24 and 25 carrying count ng and bunching mechanism for themapkms, not constituting part of this inventlon.

Extending through the wall 21 are a pair of shafts 26 and 27 spaced in parallel and rotated in unison at the same speed in opposite directions; adjustably mounted on the shaft 26 is a crank 28 having a reduced stem and on the shaft 27 is fixed a disc 29 carrying a crank pin 31, the s tem and pin being in direct angular opposition with reference to the axes of the shaft. 1

Mounted to rotate on the stem 30 isa "flat rectan ular plate 32 to which is bolted the reduce end of a block 33 having a flange 3d at its outer end, and adjacent thereto 1s another block 35 having flanges at both ends.

The block 33 is slidably mounted ina slot 36' formedlengthwise 1n a plate bar 37 havthe plate bar 41, is a spur pinion 44, its.

teeth engaging both racks 40 and 42, between which it operates, the plate bars bei slidabl connected at intervals by clips 45 above the upper e Bolted to the plate bars'37 and 41 are a pair of raised an ports 50, olfset inwardly dges of the plates and having open central vertical slots 51 to receive the ends of a shaft 52 on which a roll of narrow tapelike pa r banding 53 is carried. At a point fu er to the front on the beam, constituted by the bars 37, 41 and rail 39, the crank stem 31 asses throu h an opening therein, in the p ane of the s 0t 36 and is secured by a nutat its outer end.

It will now be apparent that the beam,

as an entity, is given a gyratory movement I around the axes of the shafts 26 and 27 and is retained throu hout in a level horizontal position; motion 1s transmittedby the crank pin 31, the crank stem 30 acting as a su spending means, due to its connectlon within the slot.

the beam, the function of which will later? appear, the levers being drawn upwardly to cause engagement with the cams by tension springs 60.

Rearward of the pivots 57 a pair of plate brackets 61 are secured on the beam sides, the raised rear portions being slotted to receive a spindle 62 on which is fixed a disc roll 63, having a portion of its knurled periphery entering an open tray-like container 64, provided with an adjustable wiper 65 to remove any excess of a li uid adhesive 66 that may be taken up by t 1e roll from the container in which a supply of adhesive is held, and a partial cover 6 on the container prevent-s entrance of dirt thereto. (See Fig. 11.)

Fixed on the spindle 62, adjacent the roll 63. is a spur pinlon 68, these two elements filling the space between the brackets 61 and meshing with the pinion is a gear 70 fixed ar the cams and piv the elements 59.

on the hub of a disc 71 frictionally tight on an eccentric spindle 72, having reduced' ends passingwthrough the brackets 61, one of the ends ing secured by a nut]?! and the other carrying a knurled knob 74 b 70 which the spindle may be manually a justed.

Another disc 75 is mounted on the spindle 72, filling the space between the brackets and held by one or more screws 76 to the 75 ad'acent disc 71. 1

e disk 71 (see Fig. 12) has an undercut groove in its periphery to receive a rubber ring 77 open at one point and clam by a washer 78, held by screws 79 to t e disc 80 71, and the gear 70 is held to the outer surface of the washer by screws 80.

Fixed frictionally tight on the hub of the disc 75 is a spur gear 81 in mesh with the upperteeth on the rack 40 by'which rotary 85 motion is conveyed when the rack is actu ate In. the periphery of the disc 75 is a single notch 82, in which is en able a pawl 83, pivoted on a pin 84 set in e outer adjacent side of the gear 81, the pawl being pressed ilr rto ebngagingpos'ition by a spring 85. (See e disc 71 has in it a radial slot 86, inwbich is inserted a knife 87 havin a sharply bevelled, serrated extending ge adapted to as through a'transverse o nin in the rail 39 and sever the strip 0 ban 'ng material disposed between its 11 per flanges.

A dauber 88, of rubber or o er soft substance adapted to riodically' engage the adhesive supply roii 63, is set in a recess m the disc 71 to extend outwardly between the ends of the ring 77, closely ad acent the front edge of the knife 87, the dauber bein sup rted by a stem 89 slidably contained wit in the disc and pressedbutwardly by a spri 90 to the limit of a slot 91 and contlrolle by a pin 92, pasing through the 150.

It is to be noted that the dauber stemis disposed at an angle tangentially of the 's indle 72, the arrangement-being such that t e heel of the dauber, which is of lesser width than the banding strip, makes yieldin contact with the stri just prior to its being severed by the kni e.

Below the cuttingeblade, at the instant of its operation, the am is supportedon a roll 93 having reduced ends 94 to clear the are and racks, and extending pintles 95 ournalled' in the lates 37 and 41.

On the outer si es of the plates 37 and 41 are the s acers 56, beyond which are plates, 97 bent aterally outward at right angles 1. as at 98, and then extended in parallel towards the front, as at 99, these extensions bein rolled outwardly and extended downwar ly, as at 99', to reach slightly beyond I The disc 29 is provided with a sinuous cam groove101 in which. operates a roller 102, carried on the end of an arm 103 forming part of a bell-crank lever pivoted at 104 on the upright of the machine.

The other, angularly disposed arm 106 of the lever is connected by a link 107 to a clevis block 108 having in its forked lower portion a pin 109 on which a spur'pimon 110 is rotatably mounted.

Fixed on supports reaching from the column 22 is a vertical rack 111 engaging the teeth of the pinion on one side, and similarly engaging the pinion on the opposite side is another rack 112 secured to a vertical plunger or elevator 113 guided by a slot 114 in the column, central with relation to the shafts 24 and 25.

Due to the interposition of the pinion 110 between the fixed rack 111 and slidable rack 112, it will be seen that the latter rack and plunger will be moved twice the distance and at double the .speed of the clevls block 108.

Mounted on top of the plunger 113 is a table 115 having attached at its front edge an angle bracket 116, carrying pivots .117 by which is connected a pair of opposed gripping fin ers 118 pressed normally inward towar s each other by springs 119, these fingers engaging the end of the banding strip when the'plunger is in a raised positlon.

A pair of rails 120, are floatingly supported to extend Ion 'tudinally at the front of the machine, an the front rail has a downwardly offset arm 121, bent towards the column 22, as at 122, and then towards the forward end as at 123, terminating in a hook 124 to receive a tension spring 125 attached at its upper end to a pin set in the column.

A guide bracket 126, attached to the column, has in its upper portion an adjusting screw 127 to limit the rise "of the rail 120 as drawn up by the spring.

Fixed'in the arm 121 is an adjustable stud 128, against which the table 115 contacts when in its lowermost position, causing depression of the bar 120, and secured onthe arm 122 is an upright post 129 in which-is fixed a sharp pointed pin 130, adapted to pierce the banding strip.

The post 129 has on its inner side, at the top, a air of guide fingers 131 to turn the paper and upwardly when released from the finger 118, such release occurring by contact of the inner, cam-like portions of the fingers with the sides of the post, as will be later described.

The rails 120 are connected by a thin plate 132 forming a guide way and are further connected on their outer sides by looped clips 133 and 134, the latter, rear clip, having upwardly extending ends in which is set a pivot pin 135 resting freely in plate brackets 136 fixed to the frame of the machine.

' Secured to the inner sides of the clips 133, and 134, are guide strips 137, and thereabove is another plate 138 fixed between a second pair of rails 139, also attached to the clips,'these rails and plate being curved upwardly at their front ends.

The plate 138 is narrowed and extended beyond the upper rail ends at the front, as at 140, and attached to the forward inner side. at the end thereof is a block 141.

It is to be noted that the plate 138 is not parallel with the plate 132 but so arranged as to present a wider space at the front than at the rear, the purpose being to slightly compress the packages of napkins as they are passed through the discharge chute composed of the elements 132, 137, and 138, as will be more clearly apparent later on.

A pair of spaced bars 37 and 41 extend along the beam closely adjacent the racks and pivoted at 141 thereto are opposed grips 142 having inturned flanges 143 at their lower ends and on their outer sides are raised cam-like projections 144, the grips being held normally extended by spring 145.

When the table 115 is moved downwardly the lever arms 58 contact with the humps 144, closing the grips from the position shown in Fig. 3 to that of Fig. 4, the angled ends 59 extending over and past the edge of the bunched napkins.

The napkins are further guided by upright bars 146 extending down from the block 23 at a spaced distance from the face of the column 23.

Inooperation a roll of binding material, as a tape-like banding strip of paper 53 coiled upon a core, is mounted on the shaft '52 disposed revolubly between the forks of the slotted supports 50 and held adjustably at a suitable height therein.

The strip extends from the roll towards the operative end of the structure, resting on the level upper surface of the rail 39, being guided by its flanges, below the adhesive. ap-

plying device to make contact with the friction ring 77 and 'dauber 88 the friction ring impinging on the upper exposed surface of the strip 53, advancing it along the rail 39 a predetermined distance controlled by the circumference of the ring.

As has been seen. the dauber takes off a small quantity of adhesive from the disc 63, and deposits it on the strip immediately prior to the action of the knife 87, the severed portion of the strip advancing with the beam to extend past the table 115, at that time in a relatively downward'position, and become impaled on the needle 130 at some distance from its outer end the strip 53 being held between the spring impelled fingers 118 on the bracket 116, as seen in Fig. 1, until the needle has entered the material.

Upon the rccedence of the rail 3%) the strip and table rises to receive the folded napkins, a definite number being deposited, whereupon the cam actuated lever arms 58 pass over the bunch of napkins, the fingers 59 extending downward at the front of bunch, closing the strip at the rear and folding the outer end, at that time free from the needle 130, over the top the floating rail 120, carrying the needle, being depressed by contact of the plunger 113 with the adjustable stud 128, the arrangement being such as to release the needle prior to hcndingthe hand ing strip about the bunched naplvns.

Simultaneously the plate 138 is advanced, causing the block 141 to fold the rear portion of the strip upwardly and eventually press it downwardly so that the adhesive car ried by it is brought over the other end of the strip to be pressed by the curved portion of the plate 138, causing the ends of the. strip to firmly adhere.

Thereafter the banded packages of napkins are progressively passedthrough the chute composed of the elements 132, 137 and 138, and ejected at the rear end, this move ment being secured by the hook-like elements 59 carried by the beam and actuated by the cams 54.

The beam as a unit, is supported by the pivots or stems 30 and 31, and actuated by the latter to describe a gyratory path in a horizontal position about the centers of the shafts 26 and 27 The stem 30 moves within the slot 36 and carries the block 35 to which is secured the rack 42, thus rotating the pinion 49, and translating a reverse motion to the rack 40.

The'rack 40, being secured to the rail 39, transmits to it a reciprocating motion advancing and retracting the levers 56-59 in timed relation to the action of the lever 106 which raises and lowers the table 115 by reason of the cam 101 in the shaft carried disc 29.

At the same time the u per teeth on the rack 40 en age the gear 0 to give it one full turn, t as actuating the adhesive suplying devices, including the dauber 88 and nife 87 for severing a predetermined length of the banding strip, the dauber and knife however moving intermittently in one direction only, due to the pawl 83, while the gear is reversed and given a retrograde movement upon the rack being reversed, the pawl riding idly over the periphery of the disc 75.

Thus the banding strip is so plied with adhesive, sheared from the roll, and advanced over the table 115, the table raised into receiving position, the bandplaced around the napkins as the table is lowered and eventually the packages ejected outwardly of the machine.

Obviously all of the several motions are accurately timed and as gears, racks, cams parts, which are actuated at a high rate ofspeed.

The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which obviously an embodiment may be constructed including many modifications without departing from the general scope herein dictated and denoted in the appended claims.

Having thus described my invention, what I claim as new and desire to secure-by Let ters Patent, is

1. In a banding machine, the combination with a frame having vertical guides, at work part delivering device above said guides, and a driven cam adjacent the guides, of a plunger movable in said guides, a table on said plunger to receive work paa'ts, means actuated by said cam to raise andglower said plunger, means to roject a strip of handing material over the ace of the said table prior to delivery of work parts, and means operative during the descent of said plunger to wrap the banding strip around work parts deposited on the table.

2. In a banding machine, the combination with aframe having vertical guides, a work part delivering device above said guides, and a driven cam adjacent the guides, of a. plunger movable in said guides, 11 table on said plunger to receive work parts, a rack fixed on said frame, a second rack on said plunger, a pinion engaging between said racks, a block in which said pinion is mounted, a lever actuated by said cam operatively engaging said block, means to project a strip of handing material over said table when rising to work receiving position, means to fold the strip over the work arts when lowerin and means for expellmg the banded wor parts outwardly from the machine.

3. In a banding machine, a. beam moving in a gyratory path in horizontal planes, a table movable reciprocatively in a vertical plane in timed relation to said beam, means for feeding a strip ofbanding material from said beam to said table, means for supplying an adhesive to said stri means for severing the strip, and means ibr folding the strip around articles delivered on said table.

4. In a banding machine, a beam moving in a gyratory path in horizontal planes, at table movable reciprocatively in a vertical plane in timed relation to said beam, at an accelerated speed, means for applying an adhesive, cutting and advancing a strip of banding material from said beam to the top of said table to receive goods thereon, means for retaining the strip in adjusted position on the table, means for causing registration lli sides and over the oods,

of goods delivered on said table over the strip, means for foldin the stri along the and tlmed means to remove the pac aged goods from the table.

5. A banding machine comprising a horizontal beam moving in a gyratory path about fixed centers, a pair of opposed racks movable in opposite direction, in said beam, a roll of banding material carried on the beam, an

adhesive supplying device actuated intermittently by one of said racks, means combined therewith to sever a predetermined length of banding material, a work receiving table, means actuated b said beam for raising and lowering said tab e, means for advancing the severed strip of banding material over the table rior to raising the same, means for retaining the strip in position to receive goods on the table, means for closing the strip around the goods, and means for removing the banded goods from the table and outwardly of the machine.

6. In a banding machine, the combination of a frame, a beam movable therein and a roll of stripbanding material carried on said beam, of a channeled guide rail for the strip, a rack moved reclprocatively in said beam, a liquid adhesive container mounted on the beam, a gear actuated by said rack, a pinion driven by said gear a roll beside said pinion operative in said container, a frictional strip feed ring alongside said gear to engage the strip on said rail, means for driving said ring in one direction only by said gear, said ring remaining quiescent upon reverse direction of the gear, a dauber set in said ring to impinge the periphery of said roll at each full turn of the gear, a knife in said ring adjacent said dauber to-sever the strip, and means to project the severed strip and adhesive thereon into position to become folded around a plurality of work parts.

7. In a banding maclune, a deliveryv chute receptive of bound articles, said chute having a level bottom and a top inclined down wardly towards the delivery end, and means for progressively passing the packages through the chute whereby they are subjected to compression.

Jpnn o. HUNT. 

